bash-4.1$ ls -l /local/scratch/flink_historyserver_tmpdir/
total 8
drwxrwxr-x 3 p2epdlsuat p2epdlsuat 4096 Apr 21 10:43
flink-web-history-7fbb97cc-9f38-4844-9bcf-6272fe6828e9
drwxrwxr-x 3 p2epdlsuat p2epdlsuat 4096 Apr 21 10:22
flink-web-history-95b3f928-c60f-4351-9926-766c6ad3ee76
There are just two directories in here. I don’t see cache directories
from my attempts today, which is interesting. Looking a little deeper
into them:
bash-4.1$ ls -lr
/local/scratch/flink_historyserver_tmpdir/flink-web-history-7fbb97cc-9f38-4844-9bcf-6272fe6828e9
total 1756
drwxrwxr-x 2 p2epdlsuat p2epdlsuat 1789952 Apr 21 10:44 jobs
bash-4.1$ ls -lr
/local/scratch/flink_historyserver_tmpdir/flink-web-history-7fbb97cc-9f38-4844-9bcf-6272fe6828e9/jobs
total 0
-rw-rw-r-- 1 p2epdlsuat p2epdlsuat 0 Apr 21 10:43 overview.json
There are indeed archives already in HDFS – I’ve included some in my
initial mail, but here they are again just for reference:
-bash-4.1$ hdfs dfs -ls /user/p2epda/lake/delp_qa/flink_hs
Found 44282 items
-rw-r----- 3 delp datalake_admin_dev 50569 2020-03-21 23:17
/user/p2epda/lake/delp_qa/flink_hs/000144dba9dc0f235768a46b2f26e936
-rw-r----- 3 delp datalake_admin_dev 49578 2020-03-03 08:45
/user/p2epda/lake/delp_qa/flink_hs/000347625d8128ee3fd0b672018e38a5
-rw-r----- 3 delp datalake_admin_dev 50842 2020-03-24 15:19
/user/p2epda/lake/delp_qa/flink_hs/0004be6ce01ba9677d1eb619ad0fa757
...
*// *ah**
*From:*Chesnay Schepler <ches...@apache.org>
*Sent:* Monday, April 27, 2020 10:28 AM
*To:* Hailu, Andreas [Engineering] <andreas.ha...@ny.email.gs.com>;
user@flink.apache.org
*Subject:* Re: History Server Not Showing Any Jobs - File Not Found?
If historyserver.web.tmpdir is not set then java.io.tmpdir is used, so
that should be fine.
What are the contents of /local/scratch/flink_historyserver_tmpdir?
I assume there are already archives in HDFS?
On 27/04/2020 16:02, Hailu, Andreas wrote:
My machine’s /tmp directory is not large enough to support the
archived files, so I changed my java.io.tmpdir to be in some other
location which is significantly larger. I hadn’t set anything for
historyserver.web.tmpdir, so I suspect it was still pointing at
/tmp. I just tried setting historyserver.web.tmpdir to the same
location as my java.io.tmpdir location, but I’m afraid I’m still
seeing the following issue:
2020-04-27 09:37:42,904 [nioEventLoopGroup-3-4] DEBUG
HistoryServerStaticFileServerHandler - Unable to load requested
file /overview.json from classloader
2020-04-27 09:37:42,906 [nioEventLoopGroup-3-6] DEBUG
HistoryServerStaticFileServerHandler - Unable to load requested
file /jobs/overview.json from classloader
flink-conf.yaml for reference:
jobmanager.archive.fs.dir: hdfs:///user/p2epda/lake/delp_qa/flink_hs/
historyserver.archive.fs.dir:
hdfs:///user/p2epda/lake/delp_qa/flink_hs/
historyserver.web.tmpdir: /local/scratch/flink_historyserver_tmpdir/
Did you have anything else in mind when you said pointing
somewhere funny?
*// *ah
*From:*Chesnay Schepler <ches...@apache.org>
<mailto:ches...@apache.org>
*Sent:* Monday, April 27, 2020 5:56 AM
*To:* Hailu, Andreas [Engineering] <andreas.ha...@ny.email.gs.com>
<mailto:andreas.ha...@ny.email.gs.com>; user@flink.apache.org
<mailto:user@flink.apache.org>
*Subject:* Re: History Server Not Showing Any Jobs - File Not Found?
overview.json is a generated file that is placed in the local
directory controlled by /historyserver.web.tmpdir/.
Have you configured this option to point to some non-local
filesystem? (Or if not, is the java.io.tmpdir property pointing
somewhere funny?)
On 24/04/2020 18:24, Hailu, Andreas wrote:
I’m having a further look at the code in
HistoryServerStaticFileServerHandler - is there an assumption
about where overview.json is supposed to be located?
*// *ah
*From:*Hailu, Andreas [Engineering]
*Sent:* Wednesday, April 22, 2020 1:32 PM
*To:* 'Chesnay Schepler' <ches...@apache.org>
<mailto:ches...@apache.org>; Hailu, Andreas [Engineering]
<andreas.ha...@ny.email.gs.com>
<mailto:andreas.ha...@ny.email.gs.com>; user@flink.apache.org
<mailto:user@flink.apache.org>
*Subject:* RE: History Server Not Showing Any Jobs - File Not
Found?
Hi Chesnay, thanks for responding. We’re using Flink 1.9.1. I
enabled DEBUG level logging and this is something relevant I see:
2020-04-22 13:25:52,566
[Flink-HistoryServer-ArchiveFetcher-thread-1] DEBUG
DFSInputStream - Connecting to datanode 10.79.252.101:1019
2020-04-22 13:25:52,567
[Flink-HistoryServer-ArchiveFetcher-thread-1] DEBUG
SaslDataTransferClient - SASL encryption trust check:
localHostTrusted = false, remoteHostTrusted = false
2020-04-22 13:25:52,567
[Flink-HistoryServer-ArchiveFetcher-thread-1] DEBUG
SaslDataTransferClient - SASL client skipping handshake in
secured configuration with privileged port for addr =
/10.79.252.101, datanodeId = DatanodeI
nfoWithStorage[10.79.252.101:1019,DS-7f4ec55d-7c5f-4a0e-b817-d9e635480b21,DISK]
*2020-04-22 13:25:52,571
[Flink-HistoryServer-ArchiveFetcher-thread-1] DEBUG
DFSInputStream - DFSInputStream has been closed already*
*2020-04-22 13:25:52,573 [nioEventLoopGroup-3-6] DEBUG
HistoryServerStaticFileServerHandler - Unable to load
requested file /jobs/overview.json from classloader*
2020-04-22 13:25:52,576 [IPC Parameter Sending Thread #0]
DEBUG Client$Connection$3 - IPC Client (1578587450) connection
to d279536-002.dc.gs.com/10.59.61.87:8020 from d...@gs.com
<mailto:d...@gs.com> sending #1391
Aside from that, it looks like a lot of logging around
datanodes and block location metadata. Did I miss something in
my classpath, perhaps? If so, do you have a suggestion on what
I could try?
*// *ah
*From:*Chesnay Schepler <ches...@apache.org
<mailto:ches...@apache.org>>
*Sent:* Wednesday, April 22, 2020 2:16 AM
*To:* Hailu, Andreas [Engineering]
<andreas.ha...@ny.email.gs.com
<mailto:andreas.ha...@ny.email.gs.com>>; user@flink.apache.org
<mailto:user@flink.apache.org>
*Subject:* Re: History Server Not Showing Any Jobs - File Not
Found?
Which Flink version are you using?
Have you checked the history server logs after enabling debug
logging?
On 21/04/2020 17:16, Hailu, Andreas [Engineering] wrote:
Hi,
I’m trying to set up the History Server, but none of my
applications are showing up in the Web UI. Looking at the
console, I see that all of the calls to /overview return
the following 404 response: {"errors":["File not found."]}.
I’ve set up my configuration as follows:
JobManager Archive directory:
*jobmanager.archive.fs.dir*:
hdfs:///user/p2epda/lake/delp_qa/flink_hs/
-bash-4.1$ hdfs dfs -ls /user/p2epda/lake/delp_qa/flink_hs
Found 44282 items
-rw-r----- 3 delp datalake_admin_dev 50569 2020-03-21
23:17
/user/p2epda/lake/delp_qa/flink_hs/000144dba9dc0f235768a46b2f26e936
-rw-r----- 3 delp datalake_admin_dev 49578 2020-03-03
08:45
/user/p2epda/lake/delp_qa/flink_hs/000347625d8128ee3fd0b672018e38a5
-rw-r----- 3 delp datalake_admin_dev 50842 2020-03-24
15:19
/user/p2epda/lake/delp_qa/flink_hs/0004be6ce01ba9677d1eb619ad0fa757
...
...
History Server will fetch the archived jobs from the same
location:
*historyserver.archive.fs.dir*:
hdfs:///user/p2epda/lake/delp_qa/flink_hs/
So I’m able to confirm that there are indeed archived
applications that I should be able to view in the
histserver. I’m not able to find out what file the
overview service is looking for from the repository – any
suggestions as to what I could look into next?
Best,
Andreas
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